import JSEncrypt from 'jsencrypt/bin/jsencrypt.min'
import { Base64 } from 'js-base64';
import * as forge from 'node-forge';
import {scrypt} from 'scrypt-js';
// 密钥对生成 http://web.chacuo.net/netrsakeypair

const publicKey =  
`-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArq9XTUSeYr2+N1h3Afl/
z8Dse/2yD0ZGrKwx+EEEcdsBLca9Ynmx3nIB5obmLlSfmskLpBo0UACBmB5rEjBp
2Q2f3AG3Hjd4B+gNCG6BDaawuDlgANIhGnaTLrIqWrrcm4EMzJOnAOI1fgzJRsOO
UEfaS318Eq9OVO3apEyCCt0lOQK6PuksduOjVxtltDav+guVAA068NrPYmRNabVK
RNLJpL8w4D44sfth5RvZ3q9t+6RTArpEtc5sh5ChzvqPOzKGMXW83C95TxmXqpbK
6olN4RevSfVjEAgCydH6HN6OhtOQEcnrU97r9H0iZOWwbw3pVrZiUkuRD1R56Wzs
2wIDAQAB
-----END PUBLIC KEY-----`

const privateKey = 
`-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,EFF8327C41E531AD
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-----END RSA PRIVATE KEY-----`

// 加密
export function RsaPsw(txt) {
    const encryptor = new JSEncrypt();
    encryptor.setPublicKey(publicKey);
    return encryptor.encrypt(Base64.encode(txt));
}

// 解密
export function DsaPsw(txt) {
    const pki = forge.pki
    const privatekey = pki.decryptRsaPrivateKey(privateKey, "Welcome");
    const encryptedBytes = forge.util.decode64(txt);
    const decryptedBytes = privatekey.decrypt(encryptedBytes, 'RSAES-PKCS1-V1_5');
    return forge.util.decodeUtf8(decryptedBytes);
}

export async function ScryptPsw(password){
    const encoder = new TextEncoder();
    const passwordBuffer = encoder.encode(password);
        const N = 32768; // 迭代次数
        const r = 8;     // 块大小参数
        const p = 1;     // 并行化参数
        const dkLen = 64; // 密钥长度
        const array = new Uint8Array(16);
        window.crypto.getRandomValues(array);
        const salt = Array.from(array)
          .map(byte => byte.toString(16).padStart(2, '0'))
          .join('');
        const saltBuffer = encoder.encode(salt);
        const key =  await scrypt(passwordBuffer, saltBuffer, N, r, p, dkLen)
        const keyHex = Array.from(key)
            .map(byte => byte.toString(16).padStart(2, '0'))
            .join('');
        const scryptFormat = `scrypt:${N}:${r}:${p}$${salt}$${keyHex}`;
        console.log(scryptFormat)
        return scryptFormat;
  }